✍ Scribed by J. Bonmartin; I. Jones; A. Kerdraon; A. Lacombe; M. F. Lantos; P. Lantos; C. Mercier; M. Pick; G. Trottet; M. Bruley; C. Chantelat; M. Chapuis; Y. Chapuis; B. Clavelier; C. Couteret; J. P. Drouhin; P. Gueniau; R. Tocqueville
No coin nor oath required. For personal study only.
We describe the new Nangay Radioheliograph (version II) which is a multicorrelator system. The main characteristics of this instrument are high space and time resolutions and flexible on-line data processing. At present it produces one-dimensional images at 169 MHz. This instrument is mainly intended for solar observations.
An accurate calibration of the instrument has been carried out leading to a precise fringe stopping and to a proper knowledge of the grating response. Preliminary solar results are presented: existence of apparent motions in noise storms with a velocity of the order of 5000 km s -1; observations of radiobursts as narrow as 0.7' (Kerdraon, 1977); observations of spikeburst activity.
📜 SIMILAR VOLUMES
A north-south array has been added to the Mark II NanCay Radioheliograph (Radioheliograph Group, 1977). This instrument gives at 169 MHz two one-dimensional images of the Sun in the east-west and north-south directions including measurement of the circular polarization ratio. The main performances o